mirror of
https://github.com/openssl/openssl.git
synced 2024-11-27 05:21:51 +08:00
a056ee28ed
Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11462)
437 lines
17 KiB
C
437 lines
17 KiB
C
/*
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* Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <string.h>
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#include <openssl/buffer.h>
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#include <openssl/rand.h>
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#include "internal/packet.h"
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#include "testutil.h"
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static const unsigned char simple1[] = { 0xff };
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static const unsigned char simple2[] = { 0x01, 0xff };
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static const unsigned char simple3[] = { 0x00, 0x00, 0x00, 0x01, 0xff };
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static const unsigned char nestedsub[] = { 0x03, 0xff, 0x01, 0xff };
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static const unsigned char seqsub[] = { 0x01, 0xff, 0x01, 0xff };
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static const unsigned char empty[] = { 0x00 };
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static const unsigned char alloc[] = { 0x02, 0xfe, 0xff };
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static const unsigned char submem[] = { 0x03, 0x02, 0xfe, 0xff };
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static const unsigned char fixed[] = { 0xff, 0xff, 0xff };
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static const unsigned char simpleder[] = {
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0xfc, 0x04, 0x00, 0x01, 0x02, 0x03, 0xff, 0xfe, 0xfd
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};
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static BUF_MEM *buf;
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static int cleanup(WPACKET *pkt)
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{
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WPACKET_cleanup(pkt);
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return 0;
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}
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static int test_WPACKET_init(void)
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{
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WPACKET pkt;
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int i;
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size_t written;
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unsigned char sbuf[3];
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if (!TEST_true(WPACKET_init(&pkt, buf))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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/* Closing a top level WPACKET should fail */
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|| !TEST_false(WPACKET_close(&pkt))
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/* Finishing a top level WPACKET should succeed */
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|| !TEST_true(WPACKET_finish(&pkt))
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/*
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* Can't call close or finish on a WPACKET that's already
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* finished.
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*/
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|| !TEST_false(WPACKET_close(&pkt))
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|| !TEST_false(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, simple1, sizeof(simple1)))
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return cleanup(&pkt);
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/* Now try with a one byte length prefix */
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if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, simple2, sizeof(simple2)))
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return cleanup(&pkt);
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/* And a longer length prefix */
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if (!TEST_true(WPACKET_init_len(&pkt, buf, 4))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, simple3, sizeof(simple3)))
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return cleanup(&pkt);
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if (!TEST_true(WPACKET_init_len(&pkt, buf, 1)))
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return cleanup(&pkt);
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for (i = 1; i < 257; i++) {
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/*
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* Putting more bytes in than fit for the size of the length prefix
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* should fail
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*/
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if (!TEST_int_eq(WPACKET_put_bytes_u8(&pkt, 0xff), i < 256))
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return cleanup(&pkt);
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}
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if (!TEST_true(WPACKET_finish(&pkt)))
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return cleanup(&pkt);
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/* Test initialising from a fixed size buffer */
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if (!TEST_true(WPACKET_init_static_len(&pkt, sbuf, sizeof(sbuf), 0))
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/* Adding 3 bytes should succeed */
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|| !TEST_true(WPACKET_put_bytes_u24(&pkt, 0xffffff))
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/* Adding 1 more byte should fail */
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|| !TEST_false(WPACKET_put_bytes_u8(&pkt, 0xff))
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/* Finishing the top level WPACKET should succeed */
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(sbuf, written, fixed, sizeof(sbuf))
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/* Initialise with 1 len byte */
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|| !TEST_true(WPACKET_init_static_len(&pkt, sbuf, sizeof(sbuf), 1))
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/* Adding 2 bytes should succeed */
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|| !TEST_true(WPACKET_put_bytes_u16(&pkt, 0xfeff))
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/* Adding 1 more byte should fail */
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|| !TEST_false(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(sbuf, written, alloc, sizeof(alloc)))
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return cleanup(&pkt);
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return 1;
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}
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static int test_WPACKET_set_max_size(void)
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{
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WPACKET pkt;
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size_t written;
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if (!TEST_true(WPACKET_init(&pkt, buf))
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/*
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* No previous lenbytes set so we should be ok to set the max
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* possible max size
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*/
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|| !TEST_true(WPACKET_set_max_size(&pkt, SIZE_MAX))
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/* We should be able to set it smaller too */
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|| !TEST_true(WPACKET_set_max_size(&pkt, SIZE_MAX -1))
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/* And setting it bigger again should be ok */
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|| !TEST_true(WPACKET_set_max_size(&pkt, SIZE_MAX))
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|| !TEST_true(WPACKET_finish(&pkt)))
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return cleanup(&pkt);
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if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
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/*
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* Should fail because we already consumed 1 byte with the
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* length
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*/
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|| !TEST_false(WPACKET_set_max_size(&pkt, 0))
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/*
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* Max size can't be bigger than biggest that will fit in
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* lenbytes
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*/
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|| !TEST_false(WPACKET_set_max_size(&pkt, 0x0101))
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/* It can be the same as the maximum possible size */
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|| !TEST_true(WPACKET_set_max_size(&pkt, 0x0100))
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/* Or it can be less */
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|| !TEST_true(WPACKET_set_max_size(&pkt, 0x01))
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/* Should fail because packet is already filled */
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|| !TEST_false(WPACKET_put_bytes_u8(&pkt, 0xff))
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/* You can't put in more bytes than max size */
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|| !TEST_true(WPACKET_set_max_size(&pkt, 0x02))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_false(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, simple2, sizeof(simple2)))
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return cleanup(&pkt);
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return 1;
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}
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static int test_WPACKET_start_sub_packet(void)
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{
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WPACKET pkt;
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size_t written;
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size_t len;
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if (!TEST_true(WPACKET_init(&pkt, buf))
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|| !TEST_true(WPACKET_start_sub_packet(&pkt))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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/* Can't finish because we have a sub packet */
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|| !TEST_false(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_close(&pkt))
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/* Sub packet is closed so can't close again */
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|| !TEST_false(WPACKET_close(&pkt))
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/* Now a top level so finish should succeed */
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, simple1, sizeof(simple1)))
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return cleanup(&pkt);
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/* Single sub-packet with length prefix */
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if (!TEST_true(WPACKET_init(&pkt, buf))
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|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, simple2, sizeof(simple2)))
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return cleanup(&pkt);
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/* Nested sub-packets with length prefixes */
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if (!TEST_true(WPACKET_init(&pkt, buf))
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|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_get_length(&pkt, &len))
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|| !TEST_size_t_eq(len, 1)
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|| !TEST_true(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_get_length(&pkt, &len))
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|| !TEST_size_t_eq(len, 3)
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|| !TEST_true(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, nestedsub, sizeof(nestedsub)))
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return cleanup(&pkt);
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/* Sequential sub-packets with length prefixes */
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if (!TEST_true(WPACKET_init(&pkt, buf))
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|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, seqsub, sizeof(seqsub)))
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return cleanup(&pkt);
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/* Nested sub-packets with lengths filled before finish */
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if (!TEST_true(WPACKET_init(&pkt, buf))
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|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_get_length(&pkt, &len))
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|| !TEST_size_t_eq(len, 1)
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|| !TEST_true(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_get_length(&pkt, &len))
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|| !TEST_size_t_eq(len, 3)
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|| !TEST_true(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_fill_lengths(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, nestedsub, sizeof(nestedsub))
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|| !TEST_true(WPACKET_finish(&pkt)))
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return cleanup(&pkt);
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return 1;
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}
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static int test_WPACKET_set_flags(void)
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{
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WPACKET pkt;
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size_t written;
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/* Set packet to be non-zero length */
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if (!TEST_true(WPACKET_init(&pkt, buf))
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|| !TEST_true(WPACKET_set_flags(&pkt, WPACKET_FLAGS_NON_ZERO_LENGTH))
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/* Should fail because of zero length */
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|| !TEST_false(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, simple1, sizeof(simple1)))
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return cleanup(&pkt);
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/* Repeat above test in a sub-packet */
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if (!TEST_true(WPACKET_init(&pkt, buf))
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|| !TEST_true(WPACKET_start_sub_packet(&pkt))
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|| !TEST_true(WPACKET_set_flags(&pkt, WPACKET_FLAGS_NON_ZERO_LENGTH))
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/* Should fail because of zero length */
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|| !TEST_false(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, simple1, sizeof(simple1)))
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return cleanup(&pkt);
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/* Set packet to abandon non-zero length */
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if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
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|| !TEST_true(WPACKET_set_flags(&pkt, WPACKET_FLAGS_ABANDON_ON_ZERO_LENGTH))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_size_t_eq(written, 0))
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return cleanup(&pkt);
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/* Repeat above test but only abandon a sub-packet */
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if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
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|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
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|| !TEST_true(WPACKET_set_flags(&pkt, WPACKET_FLAGS_ABANDON_ON_ZERO_LENGTH))
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|| !TEST_true(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, empty, sizeof(empty)))
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return cleanup(&pkt);
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/* And repeat with a non empty sub-packet */
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if (!TEST_true(WPACKET_init(&pkt, buf))
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|| !TEST_true(WPACKET_start_sub_packet_u8(&pkt))
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|| !TEST_true(WPACKET_set_flags(&pkt, WPACKET_FLAGS_ABANDON_ON_ZERO_LENGTH))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xff))
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|| !TEST_true(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, simple2, sizeof(simple2)))
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return cleanup(&pkt);
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return 1;
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}
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static int test_WPACKET_allocate_bytes(void)
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{
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WPACKET pkt;
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size_t written;
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unsigned char *bytes;
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if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
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|| !TEST_true(WPACKET_allocate_bytes(&pkt, 2, &bytes)))
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return cleanup(&pkt);
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bytes[0] = 0xfe;
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bytes[1] = 0xff;
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if (!TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, alloc, sizeof(alloc)))
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return cleanup(&pkt);
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/* Repeat with WPACKET_sub_allocate_bytes */
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if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
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|| !TEST_true(WPACKET_sub_allocate_bytes_u8(&pkt, 2, &bytes)))
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return cleanup(&pkt);
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bytes[0] = 0xfe;
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bytes[1] = 0xff;
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if (!TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, submem, sizeof(submem)))
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return cleanup(&pkt);
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return 1;
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}
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static int test_WPACKET_memcpy(void)
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{
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WPACKET pkt;
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size_t written;
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const unsigned char bytes[] = { 0xfe, 0xff };
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if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
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|| !TEST_true(WPACKET_memcpy(&pkt, bytes, sizeof(bytes)))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, alloc, sizeof(alloc)))
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return cleanup(&pkt);
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/* Repeat with WPACKET_sub_memcpy() */
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if (!TEST_true(WPACKET_init_len(&pkt, buf, 1))
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|| !TEST_true(WPACKET_sub_memcpy_u8(&pkt, bytes, sizeof(bytes)))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written))
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|| !TEST_mem_eq(buf->data, written, submem, sizeof(submem)))
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return cleanup(&pkt);
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return 1;
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}
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static int test_WPACKET_init_der(void)
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{
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WPACKET pkt;
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unsigned char sbuf[1024];
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unsigned char testdata[] = { 0x00, 0x01, 0x02, 0x03 };
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unsigned char testdata2[259] = { 0x82, 0x01, 0x00 };
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size_t written[2];
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int i;
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/* Test initialising for writing DER */
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if (!TEST_true(WPACKET_init_der(&pkt, sbuf, sizeof(sbuf)))
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|| !TEST_true(WPACKET_put_bytes_u24(&pkt, 0xfffefd))
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/* Test writing data in a length prefixed sub-packet */
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|| !TEST_true(WPACKET_start_sub_packet(&pkt))
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|| !TEST_true(WPACKET_memcpy(&pkt, testdata, sizeof(testdata)))
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|| !TEST_true(WPACKET_close(&pkt))
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|| !TEST_true(WPACKET_put_bytes_u8(&pkt, 0xfc))
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|| !TEST_true(WPACKET_finish(&pkt))
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|| !TEST_true(WPACKET_get_total_written(&pkt, &written[0]))
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|| !TEST_mem_eq(WPACKET_get_curr(&pkt), written[0], simpleder,
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sizeof(simpleder)))
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return cleanup(&pkt);
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/* Generate random packet data for test */
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if (!TEST_true(RAND_bytes(&testdata2[3], sizeof(testdata2) - 3)))
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return 0;
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/*
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* Test with a sub-packet that has 2 length bytes. We do 2 passes - first
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* with a NULL buffer, just to calculate lengths, and a second pass with a
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* real buffer to actually generate a packet
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*/
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for (i = 0; i < 2; i++) {
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if (i == 0) {
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if (!TEST_true(WPACKET_init_null_der(&pkt)))
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return 0;
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} else {
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if (!TEST_true(WPACKET_init_der(&pkt, sbuf, sizeof(sbuf))))
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return 0;
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}
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if (!TEST_true(WPACKET_start_sub_packet(&pkt))
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|| !TEST_true(WPACKET_memcpy(&pkt, &testdata2[3],
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sizeof(testdata2) - 3))
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|| !TEST_true(WPACKET_close(&pkt))
|
|
|| !TEST_true(WPACKET_finish(&pkt))
|
|
|| !TEST_true(WPACKET_get_total_written(&pkt, &written[i])))
|
|
return cleanup(&pkt);
|
|
}
|
|
|
|
/*
|
|
* Check that the size calculated in the first pass equals the size of the
|
|
* packet actually generated in the second pass. Also check the generated
|
|
* packet looks as we expect it to.
|
|
*/
|
|
if (!TEST_size_t_eq(written[0], written[1])
|
|
|| !TEST_mem_eq(WPACKET_get_curr(&pkt), written[1], testdata2,
|
|
sizeof(testdata2)))
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
int setup_tests(void)
|
|
{
|
|
if (!TEST_ptr(buf = BUF_MEM_new()))
|
|
return 0;
|
|
|
|
ADD_TEST(test_WPACKET_init);
|
|
ADD_TEST(test_WPACKET_set_max_size);
|
|
ADD_TEST(test_WPACKET_start_sub_packet);
|
|
ADD_TEST(test_WPACKET_set_flags);
|
|
ADD_TEST(test_WPACKET_allocate_bytes);
|
|
ADD_TEST(test_WPACKET_memcpy);
|
|
ADD_TEST(test_WPACKET_init_der);
|
|
return 1;
|
|
}
|
|
|
|
void cleanup_tests(void)
|
|
{
|
|
BUF_MEM_free(buf);
|
|
}
|